(gdb) bt full
#0  0x00007ffff351a68e in _ecore_wl_dnd_enter (data=0x714190, data_device=0x712070, timestamp=68400, surface=0xe8c4e0, x=122368, y=58112, offer=0xa004c0) at ecore_wl_dnd.c:56
        event = 0xa1c790
        input = 0x714190
        win = 0x713ac0
        p = 0xa12d50
#1  0x00007ffff3518681 in _ecore_wl_input_cb_data_enter (data=0x714190, data_device=0x712070, timestamp=68400, surface=0xe8c4e0, x=122368, y=58112, offer=0xa004c0) at ecore_wl_input.c:852
No locals.
#2  0x00007ffff1a7ba14 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#3  0x00007ffff1a7b435 in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#4  0x00007ffff37245ef in wl_closure_invoke (closure=<optimized out>, target=0x712070, func=<optimized out>, data=0x714190) at connection.c:853
        result = 0
#5  0x00007ffff3722bb7 in handle_event (size=28, opcode=<optimized out>, id=<optimized out>, display=0x6c4570) at wayland-client.c:542
        proxy = 0x712070
        closure = 0x7f0cf0
#6  wl_display_iterate (display=0x6c4570, mask=<optimized out>) at wayland-client.c:575
        p = {7, 1835009}
        object = <optimized out>
        len = 68
        opcode = <optimized out>
        size = 28
#7  0x00007ffff3516215 in _ecore_wl_cb_handle_data (data=0x6c44d0, hdl=0x6c21b0) at ecore_wl.c:411
        ewd = 0x6c44d0
#8  0x00007ffff747e4ba in _ecore_call_fd_cb (func=0x7ffff35161d7 <_ecore_wl_cb_handle_data>, data=0x6c44d0, fd_handler=0x6c21b0) at ecore_private.h:343
        r = 0 '\000'
#9  0x00007ffff74805d4 in _ecore_main_fd_handlers_call () at ecore_main.c:1647
        fdh = 0x6c21b0
#10 0x00007ffff7480acc in _ecore_main_loop_iterate_internal (once_only=0) at ecore_main.c:1894
        next_time = 0.014581514988094568
#11 0x00007ffff747ee55 in ecore_main_loop_begin () at ecore_main.c:933
No locals.
#12 0x00007ffff7af9414 in elm_run () at elm_main.c:880
No locals.
#13 0x0000000000416c78 in elm_main (argc=1, argv=0x7fffffffdf78) at test.c:774
        test_win_only = 0 '\000'
        autorun = 0x0
        t = 0x0
#14 0x0000000000416d15 in main (argc=1, argv=0x7fffffffdf78) at test.c:787
No locals.
(gdb) frame 0
   event->source = input->drag_source->input->keyboard_focus->id;
(gdb) print *input
$1 = {display = 0x6c44d0, seat = 0x70dc00, pointer = 0xcae8a0, keyboard = 0xca7050, touch = 0x0, cursor_surface = 0x711490, cursor_frame_cb = 0xc82b80, data_device = 0x712070, pointer_focus = 0x0, keyboard_focus = 0x0, button = 0, timestamp = 4243756697, modifiers = 0, pointer_enter_serial = 68275, sx = 473, sy = 57, link = {prev = 0x6c4518, next = 0x6c4518}, grab = 0x0, grab_button = 0, drag_source = 0xb06cd0, selection_source = 0x0, xkb = {keymap = 0xedc9a0, state = 0xee46d0, control_mask = 4, alt_mask = 8, shift_mask = 1}}